Sodium alginate-g-poly(acrylic acid-co-2-hydroxyethyl methacrylate)/montmorillonite superabsorbent composite: Preparation, swelling investigation and its application as a slow-release fertilizer

Kenawy, El‐Refaie; Azaam, Mohamed M.; El‐nshar, Esraa M.

doi:10.1016/j.arabjc.2017.10.013

Cited by 46 publications

(8 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The water absorbent with a three-dimensional network structure formed by cross-linking of polymers containing hydrophilic groups such as hydroxyl and carboxyl groups has the capacity to absorb and hold a large amount of water, and can effectively improve the absorption and slow release of trace elements in crops. 38,39 Additionally, superabsorbents are potential materials for regulating the release behavior of fertilizer due to electric charges and interconnected channels in the swollen superabsorbent networks. 40 The water absorption rate under different conditions is a critical factor for the double-coated urea granular material in practical production.…”

Section: The Influence Of Synthesis Conditions On the Water Absorbenc...mentioning

confidence: 99%

Engineering and slow‐release properties of lignin‐based double‐layer coated fertilizer

Wang

Zhang

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

Chemical fertilizer has become a necessary condition for increasing the production and income of agricultural products in modern agriculture. However, excessive fertilization and fertilizer leakage could cause environmental pollution. To improve the utilization rate of agricultural fertilizers and reduce environmental pollution, the degradability of slow-release fertilizers (SRFs) has become a research hotspot. In this work, a double-layer coating material of slow-release fertilizer was fabricated using low-cost polyvinyl alcohol (PVA) and methylcellulose (MC) as the inner coating mate-

show abstract

Section: The Influence Of Synthesis Conditions On the Water Absorbenc...mentioning

confidence: 99%

Engineering and slow‐release properties of lignin‐based double‐layer coated fertilizer

Wang

Zhang

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…The first stage from 50 to 170°C which shows that at 170°C exhibits a weight loss of 5.819 % with an endothermic peak, which may be due to the removal of absorbed water molecules [26]. The second stage from 170 to 330°C with endothermic peaks at 216.57°C exhibits a weight loss of 41.465%, which may be due to the release of COOH, water, and NH 3 [27]. The third stage from 330 to 600°C, shows endothermic peaks at 524.69°C which exhibits a weight loss of 36.186 %, which may be due to the removal of volatile hydrocarbons and complete degradation to the oxide form [28].…”

Section: Effect Of Ph On Swelling Percentagementioning

confidence: 99%

Grafting Copolymerization of (Sodium Alginate/ Acrylic Acid/ MethacrylicAcid) by Gamma Radiation: Preparation and Characterization

Dahab

El-reefy

Hassan

et al. 2021

Arab Journal of Nuclear Sciences and Applications

View full text Add to dashboard Cite

Grafted copolymer (sodiumalginate (Na. Alg)-acrylic acid (AcA)methacrylic acid (MAcA)) was prepared by the gamma irradiation-induced copolymerization in the presence of N, N-methylene bis-acrylamide (MBA) as aco monomer crosslinker. The functionality, morphology and thermal stability of the prepared copolymer have been examined using FTIR spectroscopy, SEM, and TGA-DTA, respectively. The prepared material shows a smooth surface and relatively homogeneous appearance which reveals incompatibility between the monomers used. Thermal analysis of the prepared material shows stability near 400°C. The effect of the preparation conditions on the swelling property of the prepared copolymer has been investigated and the mechanism of grafting copolymerization through the irradiation process has been also discussed. The obtained results revealed that the optimum conditions for preparing a suitable grafted copolymer were using 20% Acrylic acid, 10% Methacrylic acid and 0.4 wt% sodium alginate at an irradiation dose of 15 kGy with the addition of 0.03 % of MBA as a crosslinker.

show abstract

“…In this domain, hybrids containing alginates and bentonite clays are extensively researched owing to their promising adsorption profiles, low cost, natural abundance, and environmentally benign nature. For instance, Sodium alginate-g-poly(acrylic acid-co-2-hydroxyethyl methacrylate)/montmorillonite 31 , Sodium alginate grafted poly(N-vinyl formamide-co-acrylic acid)-bentonite clay 32 and sodium alginate grafted poly (acrylic acid-co–N-vinyl formamide) 33 , Sodium Alginate Graft Poly(Acrylic Acidco-2-Acrylamide-2-Methyl Propane Sulfonic Acid)/ Kaolin 34 , Sodium alginate/bentonite impregnated TiO 2 25 , sorbents of admirable swelling and sorption properties have been developed. Hence, biopolymer sodium alginate (SA) was incorporated into the synthetic hydrogel to reduce toxicity and enhance swelling and sorption potencies.…”

Section: Introductionmentioning

confidence: 99%

Studying removal of anionic dye by prepared highly adsorbent surface hydrogel nanocomposite as an applicable for aqueous solution

Aljeboree,

Alkaim

2024

Sci Rep

View full text Add to dashboard Cite

In this study, a Sodium alginate-g-poly (acrylamide-clay)/TiO2 hydrogel nanocomposite [SA-g-p(AM-Bn)/TiO2] was synthesized using the biopolymer sodium alginate (SA), acrylamide (AM), and bentonite clay (Bn) as hybrid materials embedded with titanium dioxide nanoparticles (TiO2NPs) for the removal of toxic Congo Red (CR) dye from an aqueous solution. The [SA-g-p(AM-Bn)/TiO2] nanocomposite has been described on the basis of thermal stability, morphological analysis, estimation of functional group, and crystalline/amorphous character by TGA, EFSEM/EDX, TEM, FT-IR, and XRD analysis, respectively. The effects of operational parameters toward the CR dye adsorption on [SA-g-p(AM-Bn)/TiO2], including contact time, adsorbent dosage, initial concentration, initial pH, and temperature were investigated. The maximum adsorption efficiency was found to be 185.12 mg/g for [SA-g-p(AM-Bn)/TiO2] in 100 mg/L of solution CR at pH 6.0 within 1 h. The equilibrium isotherms, kinetics, and thermodynamics parameters of adsorption were examined, and results showed that the isotherm fitted the Freundlich model and the kinetics adsorption model of CR followed pseudo-first-order, thus indicating physisorption of anionic-CR onto the sorbent due to the development of an electrostatic attraction bond. Thermodynamic parameters for [SA-g-p(AM-Bn)/TiO2] have values (ΔG and ΔH) reflecting the spontaneous and endothermic nature of the adsorption processes. Moreover, [SA-g-p(AM-Bn)/TiO2] presented outstanding excellent reusability and recyclability with a relatively best removal percentage as compared to [SA-g-p(AM-Bn)] and suggested their applicability towards the textile industry and water purification purposes.

show abstract

Sodium alginate-g-poly(acrylic acid-co-2-hydroxyethyl methacrylate)/montmorillonite superabsorbent composite: Preparation, swelling investigation and its application as a slow-release fertilizer

Cited by 46 publications

References 29 publications

Engineering and slow‐release properties of lignin‐based double‐layer coated fertilizer

Engineering and slow‐release properties of lignin‐based double‐layer coated fertilizer

Grafting Copolymerization of (Sodium Alginate/ Acrylic Acid/ MethacrylicAcid) by Gamma Radiation: Preparation and Characterization

Studying removal of anionic dye by prepared highly adsorbent surface hydrogel nanocomposite as an applicable for aqueous solution

Contact Info

Product

Resources

About